PhabricatorSSHWorkflow.php
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	<?php

	abstract class PhabricatorSSHWorkflow extends PhutilArgumentWorkflow {

	private $user;
	private $iochannel;
	private $errorChannel;

	public function setErrorChannel(PhutilChannel $error_channel) {
	$this->errorChannel = $error_channel;
	return $this;
	}

	public function getErrorChannel() {
	return $this->errorChannel;
	}

	public function setUser(PhabricatorUser $user) {
	$this->user = $user;
	return $this;
	}

	public function getUser() {
	return $this->user;
	}

	final public function isExecutable() {
	return false;
	}

	public function setIOChannel(PhutilChannel $channel) {
	$this->iochannel = $channel;
	return $this;
	}

	public function getIOChannel() {
	return $this->iochannel;
	}

	public function readAllInput() {
	$channel = $this->getIOChannel();
	while ($channel->update()) {
	PhutilChannel::waitForAny(array($channel));
	if (!$channel->isOpenForReading()) {
	break;
	}
	}
	return $channel->read();
	}

	public function writeIO($data) {
	$this->getIOChannel()->write($data);
	return $this;
	}

	public function writeErrorIO($data) {
	$this->getErrorChannel()->write($data);
	return $this;
	}

	protected function newPassthruCommand() {
	return id(new PhabricatorSSHPassthruCommand())
	->setErrorChannel($this->getErrorChannel());
	}

	}